Indicator-lock



(Model.)

M. WELSH.

' INDIGATOB Loox. l ,N0289196 Patented Nov. 27., 1883,

9....? WWA@ N. PUERS, Plwhufumgmpher. Wasnmgmn. D C,

- nation with a door-lock whichashall, by the A aside elevation of a common, mortise'lock,

. provement as applied thereto. I similar view, showing the devices disclosed in Fig. 1 in a different position, with the indilock, in which the devices operated from the one of the knobs and a portion of thespindle l and devices actuated thereby, andas on line fmx, Fig. 1, and also showing the outside knob 4 rection, in the usual manner.

Y not shown, it being coneealedby that portion To all Liz/1,0771,` it may coll/cern:

.Massachusetta have invented a new and useand Annuneiator, which will, in connection rJTTnY STATES PATENT Titien,

MGRRIES` VELSH, OF QUINCY, MASSACHUSETTS.

INDICATOR-LOCK.

SPECIFICATIQN forming part of Letters` Patent No. 289,196, dated November 27, 1883.

Application filed April 15, 1883.

Be it known that I,` Monnins VELsH, of Quincy, in the county of Norfolk and State of ful Improvement in a Combined Door-Lock with the accompanying drawings, be hereinafter fully described, and specifically defined in the appended claims.

The object of my invention is to provide an annunciator or indicating device in combiact of bolting or locking a door to which the same is attached, automatically bring into view upon the outside of the door an indicator or lettered sign, showing` that the rooin` or apart-ment into which such closed door opens is occupied or unoccupied, as the ease may be, thus avoiding the necessity of approaching the doorA and manipulating the knob to ascertain that fact, it being particularly designed for use Aon watercloset doors in railroad-cars, hotels, `81o.; and the invention consists in the construction and combination of the divers devices embodied therein, as I...is hereinafter more fully described and claimed.

In theaccompanying drawings7 Figure l-is having a portion of the case or shell broken away, so as -toshow more clearly my im- Fig. 2 isa cator raised to show 'through the aperture in the door. Fig. 3A is a similar view of the inside of the room are in part removed, to more clearly disclose the similar devices which are operated from the outside. Fig. 4 is a central vertical section taken longitudinally through in elevation. Y

The lock shown in said views is, with the exceptions hereinafter named, of the usual (Model.)

given, is located a bolt, b, which is' moved 6o outward by the contractile force of a spring, c, attached at one end to the bolt, as shown, and at its opposite` end to a boss, d, centrally located in` the ease, and internally threaded to receive the screw which secures the shell a in place as a cover to the works. The outer `end of bolt b is preferably, when used in connection with my improvements, not formed with a bevel or oblique nosing, so as to be operated by the act of closing the door, in the usual' 7o manner, but is of full thickness at the end, as

. shown at A, Fig. 3, or so formed that it will strike squarely against the plate upon the door frame or jamb, and not be thereby forced inward on closing the door in the usual manner, the object in this being to render it necessary to turn the inside knob to fully close the door, and thus bring the indicator into view, and to also turn the outside knob to close the door when leaving, and thus change 8o` or conceal the indicator, as will be more fully explained. At its inner end said bolt is slotted at e, into which slot projects a pin, j', secured in a lever, g, which is pivoted at 71 all in the usual manner, the slot e being 0f suffi- 8 5 cient extent toward the outer end ofthe bolt to allow the bolt to be forced inward far enough to close the door without its disturbing the devices which are actuated by the knobs and their connections. A lever, i, mounted upon 9o the square bar or knob-spindle, is thereby actuated in the usual manner, so that its arm j will force the lower end of lever nq/,loackward when the inside `knob is turned, and sthus, when the door is bolted, withdraw bolt b from the bolt-plate on the door-j amb against the resistance of spring c. There is nothingnew in actuating the bolt in this manner.

` I will now describe in detail one method of carrying my invention into effect as'applied loo to the form of lock shown.` I combine` with said lock a vertical indicatorslide,`k, eonsist- 3 `ing of a narrow metallic plate or bar. thefront edge of which is supported and guidedvby the face-plate Z, and being otherwise secured in position by the caps m m and the edge of shell a, to which said caps are attached. Saidiplate 7c, upon the inner side, is provided with lugs a o, between which the outer end of a lever, p, operates to move said slide upward, while the end of a lever, q, engages the plate and lug n in a notch, r, formed therein, to hold the plate in position when the indicator is elcvated, so as to be seen from the outside through an aperture in the door, and when said plate is released by lever q a spring, s, attached to the'plate at one end and at its opposite end to cap m, by its contractile force, draws said plate downward.

Formed as a part of or attached to the upper end of plate lo is a right-angled extension, t, which serves as an indicator or annunciator plate, upon which may be lettered the word Occupied,7" or any other suitable word or words or sign to impart the information that the closet or apartment upon the door of which it is so shown is occupied or unoccupied, such vindicating -sign being, as before stated, ar-

ranged to be seen from the outside through an aperture made in the door for that purpose. as shown by the dotted lines surrounding said sign in Fig. 2, in which view the indicator is shown as raised and secured in position to be seen through the door, as stated.

`Instead of constructing the knob-spindle in one piece or bar extending from one knob to the other, so that the movement of one knob imparts a corresponding movement to the other in the usual manner, I make said spindle in two parts, dividing the spindle transversely midway between the knobs, as shown in Fig. 4. Part 1t is attached to knob w, and part e to the knob x, each being free to turn on the axis of its spindle independently kof the other, while inseparably connected linj', to act upon the duplicate levers f/ and g',

which are both pivoted to the lock-case at h. rIhe spindle-lever t has its square aperture closed upon the side adjacent to lever 1T', ex-

cept a small opening for the passage of wire y,

short arms, act upon levers p' and q, as shown` thus keeping the inner ends of the two spindles entirely separate and apart, and free to turn. independently with their respective knobs and levers. The lower end of leverg acts against a shoulder, j, formed on the inner side''of bolt b, as indicated by a dotted line in Fig. 3, while lever g acts-upon said bolt through pin f, operating in slot e, as before stated, The levers g and g, through their in Fig. 2, lever g being moved by spindle t,

acting through lever t', when turned by knob x on the inside of the door, and lever g being moved by spindle n, acting through lever t, when turned by the knob w on the outside ot the door. The outer end of bolt b not being rvbeveled, as before stated, and lhus rendered automatically self-locking, the door cannot be closed from within or without without first lettered or marked to signify that the closet or apartment into which the door opens is unoccupied. Vhen the occupant leaves the closet, simply swinging the door to after him, it will be held ajar by the projecting springbolt b and until the outside knob is turned to fully close and bolt the same the locking devices actuated by said knob and its spindle a, and the indicator-slide will be in the respective positions shown in Fig. 3, when, by turning knob w to force bolt b inward against therresistance of spring c, to fully close and secure the door, the spindle-lever i will act, through its arm j, against lever g', which, acting against shoulder f', willmove bolt b inward, and at the saine time the short arm of lever g will act upon the long arm of lever q, thereby rocking the lever upon its pivot and withdrawing its outer end from notch r in the indicator-,lug a, thus releasing the plate k from the upward support of lever q, when the spring s will draw the plate downward, thereby changing the indicator so as to impart the information that the closet is vacant, and while in this .condition any further manipulation of the outside knob in opening and closing the door exclusively from that side will not affect the position of the annunciator. Said plate 7c and lever q will remain as shown in Fig. l.

son entering the closet must turn the inside knob, in order to fully close and bolt the door, and in so doing spindle-lever t, Fig. 2, will be rocked so that its arm j will act upon the lever g, and said lever, through its pin f, operating in slot e, will move bolt b inward against the force of its spring c, thus enabling the door to be fully closed, and at the same time the short arm of lever g will act upon the short arm of lever p, whose long arm eX- tends under lug o on plate k, and thereby raise plate 7c and its indicating-arm t until the indicator, or that portion of it which announces that the closet is occupied, -stands opposite the aperture in the door, where it may be seen from the outside, and as the indicator is thus raised the notch r is -moved up so that the end of lever q is made to engage the same by the contractile force of its spring e', secured thereto at one end and at its opposite end attached to the lock-case.- Thus IOO IIO

turning the inside knob places the several parts in the positions shown in Fig. 2, and they can be displaced only by turning the outside knob, as herenbefore stated.

It is obvious that many modiiications in the details of construction may be made in carrying my invention into effect. Therefore,

Having described one practical method of accomplishing the object of my invention, I claiml. In a door-lock, a, and in combination with suitable coacting devices for moving the bolt b thereof, a knob-spindle divided transversely into sections u o, united by a pivotal longitudinal connection, y, whereby the two sections are secured against lineal separation while being free to rotate independently, substantially as and for the purposes specified.

2. The combination of knob-spindles u fu, provided with a lineal connection, y, levers il and i', formed to receive said spindles and to be actuated thereby, and with a partition upon one of said levers at the base of its spin- (lle-socket, to prevent contact of the inner ends of said spindles with each other, bolt b, and indicator t, constructed and arranged to be actuated thereby, all substantially as and l'or the purposes specified.

The knob-spindle o, the coacting levers g p, the locking-lever q, provided with an actuating-spring, c, and the indicator-slide lc, the said parts being so constructed, combined, and relatively arranged to operate together that spindle o, when seated in lever z' and rotated, asfdescribed, will actuate said lever so that it will in turn operate lever g, and thereby withdraw the bolt and at same time to act upon lever p, and thereby elevate slide la, when lever q, actuated by the contractile force of its spring z, will engage the notch in said slide and thus lock the same in such elevated position, substantially as described, and for the purposes specified.

4. The knob-spindle u, the coacting levers i', g', and q, the bolt b, and the indicator-slide k, provided with an actuating-spring, s, the said parts being so constructed, combined, and relatively arranged to operate together that spindle fu., when seated in lever c" and rotated, as described, will actuate said lever so that it in turn will operate lever g to withdraw the bolt, and 'at same time to act upon lever q to release the same from the notch in the indicator-slide, when said slide k and its indicator or signal will be lowered by the contractile force of the spring s, substantially as before described, and for the purposes specified. y

5. The combination, with a door-lock and signal, operatively connected by the means substantially as describedof a locking-bolt having a square or non-beveled nose or locking end, whereby it is made necessary, in orderto close and bolt the door therewith, to manipulate the bolt-actuating knob, whereby the requisite movement and change of the connected signal is surely eiiected whenever the door is so bolted or unbolted, as and for the purposes specified.

MORE-IES WTELSH;

Vitnesses:

EUGENE HUMPHREY, T. W. PORTER. 

